Journal Article Research Support, Non-U.S. Gov't Solutions Thiophenes X-ray refraction X-ray scattering alkali halides band bending fibre texture grazing incidence X-ray diffraction grazing-incidence X-ray diffraction grazing-incidence diffraction indexing mathematical crystallography metal-insulator-semiconductor structures organic electronics organic thin films photoelectron spectroscopy refraction correction surface reflection thin films uni-planar texture